Messages in this thread | | | Date | Fri, 29 Aug 2008 13:49:16 +0100 | From | Ralf Baechle <> | Subject | Re: [PATCH v2 3/6] sched: make double-lock-balance fair |
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On Wed, Aug 27, 2008 at 01:07:04PM +0200, Peter Zijlstra wrote:
> > BTW. I wonder about other architectures that are of interest to -rt? Like > > mips or arm perhaps... Any plans to implement ticket locks on those, or > > do they not tend to be used in SMP configurations on -rt yte? > > I think both are starting to show more and more SMP machines, so yes, > eventually we'll want ticket locks for them too. > > That said, I'm not aware of anyone working on it - I suppose we could > poke the regular arch maintainers.. Ralf, Russell ?
I looked into this a bit and we definately need it. One large MIPS user already had converted his kernel to ticket locks due to an excessive number of cacheline bounces having been observed.
Ralf
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